// User 类
Ext.define("AM.model.User", {
	extend: 'Ext.data.Model',
	fields: [
		{name: 'name', type: 'string', sortable: true},
		{name: 'age', type: 'int', sortable: true},
		{name: 'email', type: 'string', sortable: true}
	]
});